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Pharmacokinetic (PK) Study of Phytochemicals in Whole Grains (WGs)- Brown Rice

North Carolina Agriculture & Technical State University · with National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) · NCT07898137

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Opens the official ClinicalTrials.gov record, with the study team’s contacts. Bored Studies doesn’t enroll anyone.

Key facts

Compensation
Not posted. Ask the study team before screening.
Who can join
Ages 25–70 · All sexes
Healthy volunteers
Accepted
Study type
Interventional · Not applicable
Target enrollment
16
US sites recruiting
1
Study start
January 15, 2027
Record last updated
October 27, 2026

Status re-checked against ClinicalTrials.gov within the last 12 hours.

What the study is about

The purpose of this research study is to identify biomarkers (measurable signs).

in the body like substances in blood or urine) of whole-grain (WG) brown rice intake following an acute exposure in a pharmacokinetic (how the body absorbs, processes, and gets rid of a substance or ingredient) feeding study. In this aim, investigators will conduct a randomized crossover acute pharmacokinetic study of brown rice. Investigators will then use a targeted metabolomics approach to identify the exposure markers of brown rice intake, further develop analytical methods to study its pharmacokinetics, build an in-house WG metabolite database, and use an untargeted metabolomics approach to investigate postprandial biomarkers of brown rice intake. At the completion of this study, the expectation is that investigators will identify brown rice phytochemicals and its metabolites as objective biomarkers of total and individual WGs that are commonly consumed by Americans.

Being studied: Whole-Grain Brown Rice; Refined White Rice

Conditions: Healthy Adult Males; Healthy Adult Females

Eligibility criteria

Copied from the official record. The study team makes the final decision at screening.

Show full criteria

Inclusion Criteria

  • Adults aged 25-70 years
  • Body mass index (BMI) between 18 and 30 kg/m²
  • Able to read, speak, and understand English
  • No known allergy or intolerance to the test foods
  • Normal blood and urine biochemical parameters
  • No antibiotic use within the past 6 months
  • Willing and able to comply with all study procedures, including dietary restrictions throughout the study period
  • No medical conditions or lifestyle factors that, in the opinion of the investigators, would interfere with the study objectives

Exclusion Criteria

  • Active disease, including gout, heart disease, peripheral vascular disease, kidney disease, liver disease, cancer, diabetes, gastrointestinal disorders, or endocrine disorders that may interfere with the study
  • Current smoker or use of tobacco products
  • Unwilling or unable to comply with the required dietary restrictions during the study period

Recruiting US locations

  • Clinical Research Core (CRC)

    Kannapolis, NC 28081

    Site contact: Samantha Carroll · 704-250-5083 · crc_studies@unc.edu

Study contacts (from the official record)

  • Shengmin Sang · 704-250-5710 · ssang@ncat.edu
All healthy volunteers studies in North Carolina →
Pharmacokinetic (PK) Study of Phytochemicals in Whole Grains… (NCT07898137) | Bored Studies